diff --git a/requirements_cpu.txt b/requirements_cpu.txt
index 2fe9b7e..5ce1718 100644
--- a/requirements_cpu.txt
+++ b/requirements_cpu.txt
@@ -10,4 +10,4 @@ h5py==2.7
 matplotlib==2.1
 requests==2.20
 psutil==5.4.8
-waitress==1.1
+waitress==2.1.2
diff --git a/requirements_gpu.txt b/requirements_gpu.txt
index 3508522..aa86c27 100644
--- a/requirements_gpu.txt
+++ b/requirements_gpu.txt
@@ -10,4 +10,4 @@ h5py==2.7
 matplotlib==2.1
 requests==2.20
 psutil==5.4.8
-waitress==1.1
+waitress==2.1.2